Voltage-regulator.



S. B. STORBR.

VQLTAGE REGULATOR. APPLICATION FILBDDEG. 5, 1905.

1,004, 1 02. Patented Sept. 26, 1911.

2 SHEETS-SHEET l.

QQTTUHNEK 1 S. B. STORER. VOLTAGE REGULATOR.

APPLIOATION FILED DB0. 5, 190s.

1,004,102.' Patenfea-sepn2a1911.

2 SHEETS-SHEET z.

/Esser B6; gage/vra SIMON IB. STORER, OF SYRACUSE, NEW YORK.

VOLTAGE-REGULATOR.

Specification of Letters Patent.

Patented Sept. 2G, 1911.

Application filed December 5, 1905. Serial No. 250,465.

To alt whom it may concern.:

llc it lrnown that I, SlnoN B. Slronnn, o't' Syracuse` in the county of Onondaga, in the State of N ew York, have invented new and uset'ul Improvements in Voltage-Regalators, ot' which the following, taken in connection with the accomlmnying drawings, is a full, clearq and exact description.

This invention relates to certain improvements in vo'ltage regulators t`or electric'distrihuting systems in which an alternating or pulsatory electric current is employed for operating various translating devices at more or less distant points in one or more electric circuits deriving current trom the same source.

The essential purpose ot my invent-ion Vis to wind the secondary coils ot the trans- 'tormer upon one or more (preferably two opposite) reels or revolving spools in such manner that the number of effective turns ot the secondary coil mayI be gradually increased or diminished by simply rotating the reel or reels in one direction or the other, thereby winding and unwinding the secondary coil upon and from the reel or reels, and correspondingly and uniformly varying the voltage generated in the secondary circuit. It will be seen that thisl method oit regulation 'is particularlyY advantageous when it is considered that; the variation in the voltage which is added to or sul'itracttwl from the cir-- cuit which is being regulated, is etieeted smoothly, thereby establishing a very much closer regulation ole the voltage in said cil'- cuit than would be possible with a step-bystep gradation, involving a variation ot sev- -eral volts at each step, and that by this method l also remove the extra expense ot a regulating switch and its incidental liability ot impairment b v burning oi the contacts, as well as doing away wit-h the objectionable torque of the induction regulator.

in the drawings-'lt`igure l is a top plan oll a transformer in which the reels for the sec` 'ondarv coils are-rotatingly mounted uponl opposite ends of the core and surround the adjacent primary windings. Fig. 2 is a longitudinal sectional view through the transformer seen in F ig. lf Fig. 3 is an enlarged longitudinal sectional view through one of the reels showing the inclosed primary winding and adjacent portion ot the core. Fig. 4:

-is a plan vof a device similar to Fig. l, showing tivo wires leading from each segment of one commutator to two segments of the other eomn'lutator. Fig. is a transverse sectional A view (if a reel similar to that seen in Fig. Q

showing' a modified collector having t'our segments and tour brushes unequal distances apart.

In order that my invention may be clearly understood l have shown a working-circuit uf- WW in which is connected any translating' device, as an electric lamp -11-, said wort'ng oirenit being connected by the wire -Z/- to one side of the circuit --(t-7/-, while the secondary winding -7-- is connected in the other side. of said 'circuitthrough. the medium ot' collectorrings and brushes ---8- and 49'-, and suitable wires 4Q and -l2-. The primary winding, as t0-, from the circuity @#6 is connected across an alternating-ctn'- rent-circuit c--rZ deriving current from an alternating current dynamo -A-.

lVhen connected as above stated, the secondary winding will have generated therein voltages in opposition to eachother so that when all of the winding is on one reel it will add the total voltage generated in such winding to the working circuit: while on the other hand, it the total secondary winding is upon the other reel, the total voltage generated in such winding will be in opposition to, or subtracted from the circuit, and that in all intern'iediate positions ol' the secondary winding a voltage is added to 01' subtracted from the voltage lin the circuit -cdin proportitm to the relative positionI` or excess amount of winding or turns on one over the other.

It is, of course, evident that when half the secondary winding is on one reel and halt on the other, the voltages generated inthe two halves will be equal and opposite, and therefore, neutralize each other and do not atleet the primary circuit or the circuit to he regulated in any manner, irrespective of the current that may betlowing" in said seeondary. For all other positions the effective voltage added to or subtracted from the circuit to be regulated is due to the differences between the voltages generated in the two parts of. the secondary winding on the two reels.

The secondary winding upon the reels -20- and -20- will be made of flexible wire or cable, properly insulated in any well known manner to maintain sutiieient flexibility to permit it to be easily wound and unWound from one core-seetion to the other,

Suitable for automatic operation, and enables me to easily regulate, either directly, or through 'the medium of a series-transformer, the Voltage of any circuit over any range and in a uniform Amanner Without the introduction of 'any high voltage or excessive currents in the secondary circuit. It also permits of a better general design of transformer, 'ving better regulation and less magnetizlng current. For example, if ythe secondary Winding surrounds the primary Winding the regulation Will be much better than if they are on opposite sides of the core.

The device shown in Fig. 4L is Very similar to that shown in Figs. l and 2, except that each segment of. one of the commutators is electrically connected to two or more segments of the other commutator Which makes it unnecessary to connect the middle points of the connecting Wires or cables together.

That I claim is:

l. In a voltage regulator forelectrical distributing systems, a transformer, and a' reel for supporting part of its Winding, in combination with current collecting segdistributing systems, a transformer, sepal rate reels upon which the secondary Winding is adapted to be Wound and unwound, a current collector comprising a plurality of segments insulated from each other and rotating with one 'of the reels, and brushes contacting with said segments. l

In Witness whereof have hereunto set my hand this 27th day of November, 1905.

SIMON B.` STORER. Witnesses: i

H. E. CHASE, .MILnRED MfNo'i'r. 

